Windows 10 Home to Pro Upgrade. Permanent key for Windows 10 Pro: DR9VN-GF3CR-RCWT2-H7TR8-82QGT. After searching for a while, I finally found a way to upgrade from Windows 10 Home to Pro. Steps: Start → Settings → Update & Security → Activation → Change Product Key. If the tool doesn't activate, it's recommended to use the command line! Press the Win key and type 'cmd' to open the Command Prompt as an administrator; Enterprise users should enter sequentially: slmgr/ipk NPPR9-FWDCX-D2C8J-H872K-2YT43, slmgr/skms kms.03k.org, slmgr/ato.
